Transmission



forms the same function as the thread guide 13 in our preferred form.

A modified form of roller as illustrated in Figure 10 of the drawingsmay be used. This roller 49a, which may be used in place of roller 49shown in'zthe second form of the invention, has a groove 58 for thepurpose of positioning the first pass" of the filaments 10 as they areextruded from the spinnerette 8. With this type of.roller 49a the threadguide 54 can be dispensed with or used in an alternative form.

In Figures 11-13 is shown a modifiedform of the bracket assembly withanother type of roller being used. The reference numerals used will bethe same as for corresponding parts shown in Figures 7 to 9 except thatthe letter b will be used with the numerals.

The bracket assembly in this form comprises spaced rollers 48b-49bsupported by side bracket members. 50b-50b twisted at 51b-51b and heldin spaced relation by lugs 60-61. The lugs 60 have threaded sockets forreceiving the bolts 62 which are inserted through the bored lugs 61.

In this form the bracketasscmbly is supported through a dove-tail means.One portion of the dove-tail is screwed to the U-ahgle 30 by screws 63and is indicated by the numeral 64. The other part of the dove-tailindicated as 65 is integral with the inner bracket member 50b. Therollers 4817-491) rotate on the shafts 55b-55b which are the same as theshafts illustrated in Figures 7-9 and which are secured in the samefashion by the elastic means 56b.

The modified roller 49b used in this form and shown per se in Figure 13of the drawings is designed to function as a fiy wheel for stabilizingany tendencies of lag which might possibly occur thereby causingpossible unevenness in denier. In this form the roller 49b also has apositioning groove 58b which is illustrated in Figure 10. Adjacent thegroove 58b is a disc shaped flange 59 having an enlarged peripherysimilar to the usual fly wheel. This fly wheel roller 49b may also beconsidered the equivalent of roller 49 as illustrated in my secondmodified form.

A lug 66 has been placed just above the fastening means on the lowerroller. The purpose of this lug 66 is to protect the turned up end 52bof the shaft 55b from being broken off when lifting the bracket assemblyfrom the spinning machine.

Having now set forth our invention as required by the patent statutes,it is believed that it will be easily understood by anyone skilled inthe art, and what we claim is:

1. In a process for equalizing the dyeing qualities of artificialfilaments, the steps of extruding the filaments under the surface of abath and passing them upwardly to a freely rotatable surface, thendownwardly to another freely rotatable surface, at least one of saidsurfaces being out of said bath, repeating the upward and downwardpassage a plurality of times over the said surfaces, and then passingthe filaments upwardly to a collecting device under increasing tension.

2. In a process for equalizing the dyeing qualities of artificialfilaments, the steps of extruding the filaments under the surface of abath and passing them upwardly to a freely rotatable surface, thendownwardly to another freely rotatable surface, said second freelyrotatable surface being immersed in a bath calculated to aid in theprecipitation of the filaments, repeating the upward and downwardpassage of the filaments a plurality of times over the said surfaces,and then ,up means at a predetermined passing the filaments upwardly toa collecting device under increasing tension.

3. In an apparatus for equalizing the dyeing qualities of artificialfilaments, in combination, a spinnerette for extruding the filaments, atakeup roller or spool and thread guide associated therewith freelyrotatable rollers over which the filaments are looped a plurality oftimes before passing to the guiding and take-up device, one of saidrollers having a circular flange integrally attached thereto, saidflange being weighted at its outer periphery, whereby lagging tendenciesof said roller are overcome, and means for rotating said take-up meansat a predetermined progressively increasing peripheral speed.

4. In a process for equalizing the dyeing qualities of artificialfilaments, the steps of extruding the filaments under the surface of abath and passing them upwardly to a rotating surface, then downwardly toa rotatable surface, at least one of said surfaces being out of saidbath, repeating the upward and downward passage a plurality of timesover the said surfaces and then passing the filaments upwardly to acollecting device under an increasing tension.

5. In a process for equalizing the dyeing qualities" of artificialfilaments, the steps of extruding the filaments under the surface of abath and passing them upwardly to a rotating surface, then downwardly toa rotatable surface, repeating the upward and downward passage aplurality of times over the said surfaces and then passing the filamentsupwardly to a collecting device under an increasing tension, thelowermost of the saidsurfaces contacting with the bath.

6. In an apparatus for equalizing the dyeing qualities of artificialfilaments, in combination, a spinnerette for extruding the filaments, atakeup roller or-spool and thread guide;associated therewith, a pair ofrollers over which the filaments are looped a plurality of times, saidrollers being positioned between said spinnerette and said take-updevice, one of said rollers being power-driven and the other of saidrollers being freely rotatable and means for rotating saidtakeprogressively increasing peripheral speed.

7. In an apparatus for equalizing the dyeing qualities of artificialfilaments, in combination, a spinnerette for extruding the filaments, atakeup roller or spool-and thread guide associated therewith, a pair ofrollers over which the filaments are looped a plurality of times, saidrollers being positioned between said spinnerette and said take-updevice, one of said rollers being power driven at a constant speed andthe other of said rollers being freely rotatable, and means for rotatingsaid take-up means at a predetermined progressively increasingperipheral speed.

8. In a process for producing artificial yarn, the steps of extrudingthe yarn, passing it through a coagulating or precipitating bath, and

- thereover, so that, as the collecting device increases its body ofyarn a higher peripheral speed will be exerted, whereby the yarn will bewound under an increasingly greater tension as the build-up increases.

RICHARD ELSSNER. RALPH H. CARTER.

Feb. 26, 1935. R, LAPSLEY 1,992,898

TRANSMISSION v Filed.Jan. :51, 1931 2 Sheets-Sheei. 1

fvw/ziw fiobri ia osg LEY TRANSMI SSION Feb.

Filed Jan. 31, 1931 Patented Feb. 26, 1935 UNITED STATES TRANSMISSIONRobert Lapsley, Buchanan, Mich, assignor to Clark Equipment Com acorporation of Michigan Application January 31,

pany, Buchanan, Mich.,

auto

1931, Serial No. 512,596

7 Claims. (01. 30s 135) The present invention relates generally toautomobile transmissions, and more particularly to l a new and improvedmounting for one of the gears of the transmission and to a new and improved countershaft or secondary shaft construction.

The present construction which illustrates one embodiment of myinvention is particularly adapted for transmissions employing helicalgears, since the mounting of the gears and the countershaft isparticularly arranged to take care of the axial thrusts arising from theuse of helical gears.

Other objects and advantages of the present invention will be apparenttothose skilled in the art after a consideration of the followingdetailed description of the preferredv structural embodiment, taken inconjunction with the accompanying drawings, in which: I

Figure 1 is a vertical cross-sectional view through a transmissionembodying the principles of the present invention;

Figure 2 is an enlarged cross-section taken substantially along the line2-2 of Figure 1;

Figure 3 is an enlarged cross-sectiontaken substantially along the line3--3 of Figure 1; and

Figure 4 is a perspective illustrating the method of mounting of theseparts and the means holding one of the helical gears in place on thedriven shaft.

In the drawings, the reference numeral 1 indicates in its entirety thehousing of the transmission. The housing 1 carries a cover plate 2having the pedestal 3 in which is mounted the usual gear shift lever,the lower end of which is indicated by the reference numeral 4, and theassociated shift rods 6, 7 and 8 carrying the shift forks 10, 11 and 12in the usual and well known manner. The forward web 15 of thetransmission housing 1 carries a bearing cap 16 in which is journaledthe driving shaft 17 which is adapted to be connected at its forward endto the clutch of an automobile motor (not shown). The rear end of thedriving shaft 17 carries or has formed integrally therewith a drivinggear 20 which is provided with a pair of axial concentric bores 22 and23 the purpose of which will be described later.

The driving gear 20 is journaled in the transmission housing 1 by meansof ball bearings 25 having an innerrace 26 secured to'the driving gear20 and an outer race 27 mounted in the forward web 15 of thetransmission housing.

A tubular'secondary or countershaft 30 is journaled inthe lower part ofthe transmission housing. For this purpose the housing carries a fixed,shaft 31 carrying a roller bearing structure 32 upon which the rear endof the tubular countershaft 30 issupported. The forward end 33 of thefixed shaft 311s reduced and threaded, there being a shoulder 34 betweenthe forward and the rear portions of the fixed shaft. A nut 35 isadapted to be threaded onto the reduced end 33 of the fixed shaft and toeffectively secure the 10 shaft in position in the transmission housing.The forward end of the tubular countershaft 30 carries a helical drivengear 40 which is arranged to be in constant mesh with and driven by thedriving gear 20 which also is a helical gear 15 and is formed with anextended hub portion 41 having a bore receiving the forward end of thecountershaft 30 to which thehub 41 of the driven gear 40 is fixedlysecured as by a key or other means.

The driven gear 40 is formed with an axial recess which receives theouter race 43 of the bearing means supporting the driven gear 40 and theforward end of the tubular countershaft. This bearing means comprises aplurality of anti- 25 friction elements in the form of balls 45operating between the outer race 43 and an inner race 46. The latter ismounted on a flanged washer 48, one end of which abuts against theshoulder I 34 on the fixed shaft while the flange 49 thereof 30 abutsagainst the inner race 46 so that when the nut 35 is tightened thebearing means for the driven shaft 40 is effectively clamped and securedin place in the transmission housing 1 against the forward web 15. Inorder to better 35 position these parts the web 15 is provided with anannular boss 50 to receive the inner race 46 thereagainst. The outerrace 43 is held in place in the driven gear 40 by a spring ring 52snapped into a suitably formed groove in the driven gear 40 46. Thedriven gear and the bearing means just described are so arranged thatany forward thrust transmitted to the driven gear is resisted by theballs 45, and the outer and inner races 43 and 48. V

A driven shaft is journaled for rotation in the transmission housing 1.This shaft comprisessplined portions 61 and 62 of different diameters,there being a circumferential and forwardly facing shoulder 63 betweenthese two portions. The 50 forwardmost end 66 of the driven shaft 60 isreduced and is suitably supported by bearings 65 in the axial bore 23formedin the driving gear 20.

As shown in Figure 1 this bearing means comprises a plurality ofrollers. The rear end of the on

